problem with array

[skarosi]

Hi all,
I have to make a programm that uses an array, i have declared the array as a global variable, but the problem is that the size of the array is been inserted by the user later on, so i cant set the size of it on the declaration.
What can i do,apparently the size of it is not been updated when the value changes.
Thanks

 

[CaptRage61]

You can't change the size as you go. When you declare it declare it as: <type> myArray[];
then when you know the size that you want it then create it: myArray[] = new array[size];

 

[skarosi]

and this will still keep it global variable right?
ok i will try this

 

[skarosi]

it seems that this doesnt work,
i got it like this:
global variable
public int[][] G;
and in the method
G[][] = new array[rows][cols];
and i got these errors:
C:\...Gallager2.java:150: not a statement
G[][] = new array[rows][cols];
^
C:\...Gallager2.java:150: ';' expected
G[][] = new array[rows][cols];
^
any ideas?

 

[sedj]

public int[][] someIntArray;

someIntArray = new int[5][4];

Also, naming a variable "G" is not very good style - a variable name should be descriptive.

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[skarosi]

this one worked sedj, cheers.
also G is the name of the array that the documentation uses.so i just had to use this name.
thanks again